CVE-2025-11266
Description
A flaw was found in the Grassroots DICOM library (GDCM). A remote attacker could exploit an out-of-bounds write vulnerability by tricking a user into opening a specially crafted DICOM file. This file, containing malformed image data, triggers an unsigned integer underflow during parsing, leading to an out-of-bounds memory access. Successful exploitation results in a denial-of-service condition, causing the application to crash.
Statement
This vulnerability is rated Moderate. An out-of-bounds write flaw in the Grassroots DICOM (GDCM) library can be triggered by parsing a specially crafted DICOM file. This can lead to a denial-of-service condition. Exploitation requires user interaction, as a victim must open a malicious DICOM file.
Understanding the Weakness (CWE)
Integrity
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands
Write operations could cause memory corruption. In some cases, an adversary can modify control data such as return addresses in order to execute unexpected code.
Availability
Technical Impact: DoS: Crash, Exit, or Restart
Attempting to access out-of-range, invalid, or unauthorized memory could cause the product to crash.
Other
Technical Impact: Unexpected State
Subsequent write operations can produce undefined or unexpected results.
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